434423131 has 4 divisors (see below), whose sum is σ = 434493000. Its totient is φ = 434353264.

The previous prime is 434423123. The next prime is 434423147. The reversal of 434423131 is 131324434.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 434423131 - 2³ = 434423123 is a prime.

It is a super-2 number, since 2×434423131² = 377446913495686322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 434423096 and 434423105.

It is not an unprimeable number, because it can be changed into a prime (434423111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24586 + ... + 38383.

It is an arithmetic number, because the mean of its divisors is an integer number (108623250).

Almost surely, 2^434423131 is an apocalyptic number.

434423131 is a deficient number, since it is larger than the sum of its proper divisors (69869).

434423131 is an equidigital number, since it uses as much as digits as its factorization.

434423131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69868.

The product of its digits is 3456, while the sum is 25.

The square root of 434423131 is about 20842.8196509014. The cubic root of 434423131 is about 757.3634000145.

Adding to 434423131 its reverse (131324434), we get a palindrome (565747565).

The spelling of 434423131 in words is "four hundred thirty-four million, four hundred twenty-three thousand, one hundred thirty-one".